Thetford N100 on gas

The fridge seems to be roaring away on gas permently. It very rarely seems to get up to temp & shut off.
This is causing the work surface and hob above to get very hot!
Is this normal? Is there anything I can check?
On the LCD panel there at 5 bars going from small to large.... is the small bar coldest or is it the other way round??

I think you’ll find it’s the other way round. Small bar= warmest.
Five bars are the coldest.
Try reducucing to 3 bars, sometimes the ‘coldest’ setting isn’t the most efficient.
( Don’t forget trial and error, but at present temperatures the fridge is going to be working hard)
Try turning van to put fridge side in the shade, if possible.